Had that lab a year ago, we used Electronics Workbench, surprisingly I found it very easy to use despite is it is very heavy weight. Version 4 is very nice to use, but it is not free, I suggest you ask the lab assistant to lend you a copy or use the computer at the faculty that have the installed software.

I recommend Electronics workbench too, I been using it for 3 years now.
very good , and easy to learn.
However if you want something more complicated and that will do precise circuit simulation you'll need OrCad..

i was using Electronics workbench, but that is only for schematic.
Can u suggest me some program that transforming schematic to circuit board. I am learning Protel, but that is too complicated.
Please gave me some program that is easy to learn.